[Ultrasound diagnosis of gallbladder and bile duct diseases].

The paper is concerned with analysis of the potentialities of ultrasound introscopy in the diagnosis of various diseases of the gall bladder and biliferous ducts in 174 patients aged 19 to 76. The accuracy of the detection of calcium containing concrements of the gall bladder was 98.8%, that of choledocholithiasis--75%, noncalculous cholecystitis--88.4%, choledochodilatation--71.4%. In the absence of pathological changes in the gall bladder and biliferous ducts the reliability of echography was 27.7 and 93.1%, respectively. Causes of diagnostic errors in ultrasound tomography of the biliary system were discussed, methods of their prevention were proposed. A diagnostic algorithm of the sequence of use of ultrasound introscopy and other diagnostic methods to be employed in clinical practice was devised.